package com.example.sell.controller;

import com.example.sell.config.ProjectUrlConfig;
import com.example.sell.enums.ResultEnum;
import com.example.sell.exception.SellException;
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.error.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.api.impl.WxMpServiceImpl;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.net.URLEncoder;

@Controller
@RequestMapping("/wechat")
@Slf4j
public class WeichatController {
    @Autowired
    private WxMpService wxMpService;
    @Autowired
    private ProjectUrlConfig projectUrlConfig;
    @GetMapping("/authorize")
    public String authorize(@RequestParam("returnUrl")String returnUrl){
        //1.配置
        //2.调用方法
        String url=String.format("http://%s/sell/wechat/userInfo",projectUrlConfig.getSell());
        String redirectUrl=wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAuth2Scope.SNSAPI_BASE, URLEncoder.encode(returnUrl));
        return "redirect:"+redirectUrl;
    }
    @GetMapping("/userInfo")
    public String userInfo(@RequestParam("code")String code,
                         @RequestParam("state")String returnUrl){
        WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();
        try{
            wxMpOAuth2AccessToken=wxMpService.oauth2getAccessToken(code);
        }catch (WxErrorException e){
            log.error("【微信网页授权】{}",e);
            throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(),e.getError().getErrorMsg());
        }
        String openId=wxMpOAuth2AccessToken.getOpenId();
        return "redirect:"+returnUrl+"?openid="+openId;
    }
//    @GetMapping("/auth")
//    public void auth(@RequestParam("code")String code){
//        log.info("auth...");
//        log.info("code={}",code);
//        String appID="wx2035fc0bbfe0118e";
//        String appsecret="e34ecfdf446019fb1bf371e673f7d926";
//        String url=String.format("https://api.weixin.qq.com/sns/oauth2/access_token?appid=%s&secret=%s&code=%s&grant_type=authorization_code",
//                appID,appsecret,code);
//        log.info("url={}",url);
//        RestTemplate restTemplate=new RestTemplate();
//        String response=restTemplate.getForObject(url,String.class);
//        log.info("response={}",response);
//    }
}
